[Octave-bug-tracker] [bug #62829] "quiet" warning state is undocumented

[Arun Giridhar]

Follow-up Comment #3, bug #62829 (project octave):

Here is a demo with Octave 8. Default behavior:

$ octave -f --eval "nchoosek (100, 50), lastwarn"
warning: nchoosek: possible loss of precision
warning: called from
    nchoosek at line 150 column 7

ans = 1.0089e+29
ans = nchoosek: possible loss of precision


Warning off silences lastwarn also:

$ octave -f --eval "warning off; nchoosek (100, 50), lastwarn"
ans = 1.0089e+29
ans = 


Warning on quiet silences display but allows lastwarn:

$ octave -f --eval "warning on quiet; nchoosek (100, 50), lastwarn"
ans = 1.0089e+29
ans = nchoosek: possible loss of precision


It's useful because of that difference if the user wants to do fine-grained
warning message control, but is not fully Matlab-compatible. Since Octave is
generally a superset of Matlab, it's probably better to retain it and document
it.


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